[Windows Mobile Development and Hacking General] ryomahino:
I think you are right because in the default.plg I specify only 2 resolutions 240x320 and 320x240 = QVGA

If you want to try in your phone you must do it manually. Please insert both code in titanium.cpr

For Portrait insert inside of titanium240x320.cpr

<!-- HTCMUSIC layout templates -->
<Layer ID="HTCMUSICExpanded" Visible="False" Width="240" Height="82" Clip="False">
<Layer ID="Page" Clip="False">
<!-- Icon on left side -->
<Image ID="Icon" Left="188" Top="-13" Width="43" Height="57" />
<!-- Large picture in Center -->
<Image ID="AlbumArt" Left="12" Top="19" Width="48" Height="48" ScaleStyle="Stretch" />
<!-- Small picture on right side -->
<Image ID="StatusImg" Left="208" Top="30" Width="23" Height="23" ScaleStyle="Stretch" />
<!-- Title text -->
<Text ID="Title" Left="10" Top="2" Width="118" Height="22" FontFamily="Tahoma" FontSize="9" FontStyle="Bold" Wrap="False" VerticalAlignment="Middle" Trimming="EllipsisCharacter">
<TextStage TextOffsetType="TextOffsetDropBottomRight" Color="#00000000" TextOffset="1" BlurFactor="3" Alpha="1.0"/>
<TextStage TextOffsetType="TextOffsetNone" Color="#FFFFFFFF"/>
</Text>
<!-- Line 1 -->
<Text ID="TrackName" Left="85" Top="24" Width="121" Height="23" FontFamily="Tahoma" FontSize="10" FontStyle="Bold" Wrap="False" Trimming="EllipsisCharacter">
<TextStage TextOffsetType="TextOffsetDropBottomRight" Color="#00000000" TextOffset="1" BlurFactor="3" Alpha="1.0"/>
<TextStage TextOffsetType="TextOffsetNone" Color="#FFFFFFFF"/>
</Text>
<!-- Icon for Line 1 not currently used -->
<!-- Line 2 -->
<Text ID="ArtistName" Left="85" Top="42" Width="146" Height="19" FontFamily="Tahoma" FontSize="9" FontStyle="Regular" Wrap="False" Trimming="EllipsisCharacter">
<TextStage TextOffsetType="TextOffsetDropBottomRight" Color="#00000000" TextOffset="1" BlurFactor="3" Alpha="1.0"/>
<TextStage TextOffsetType="TextOffsetNone" Color="#FFFFFFFF"/>
</Text>
</Layer>
</Layer>
<Layer ID="HTCMUSICCondensed" Visible="False" Width="240" Height="34">
<Layer ID="Page">
<!-- Title or Condensed Line 1 -->
<Text ID="PluginLabel" Left="10" Top="4" Width="220" Height="34" FontFamily="Tahoma" FontSize="18" FontStyle="Regular" Wrap="False" VerticalAlignment="Top" Trimming="EllipsisCharacter" Text="Music">
<TextStage TextOffsetType="TextOffsetDropBottomRight" Color="#00000000" TextOffset="1" BlurFactor="3" Alpha="1.0"/>
<TextStage TextOffsetType="TextOffsetNone" Color="#FFFFFFFF"/>
</Text>
</Layer>
</Layer>

For landscape insert inside of titanium320x240.cpr

<!-- HTCEMUSIC layout templates -->
<Layer ID="HTCMUSICExpanded" Visible="False" Width="320" Height="82" Clip="False">
<Layer ID="Page" Clip="False">
<!-- Icon on left side -->
<Image ID="Icon" Left="268" Top="-13" Width="43" Height="57" />
<!-- Large picture in Center -->
<Image ID="AlbumArt" Left="17" Top="19" Width="48" Height="48" ScaleStyle="Stretch" />
<!-- Small picture on right side -->
<Image ID="StatusImg" Left="281" Top="30" Width="23" Height="23" ScaleStyle="Stretch" />
<!-- Title text -->
<Text ID="Title" Left="10" Top="2" Width="180" Height="22" FontFamily="Tahoma" FontSize="9" FontStyle="Bold" Wrap="False" VerticalAlignment="Middle" Trimming="EllipsisCharacter">
<TextStage TextOffsetType="TextOffsetDropBottomRight" Color="#00000000" TextOffset="1" BlurFactor="3" Alpha="1.0"/>
<TextStage TextOffsetType="TextOffsetNone" Color="#FFFFFFFF"/>
</Text>
<!-- Line 1 -->
<Text ID="TrackName" Left="95" Top="24" Width="184" Height="23" FontFamily="Tahoma" FontSize="10" FontStyle="Bold" Wrap="False" Trimming="EllipsisCharacter">
<TextStage TextOffsetType="TextOffsetDropBottomRight" Color="#00000000" TextOffset="1" BlurFactor="3" Alpha="1.0"/>
<TextStage TextOffsetType="TextOffsetNone" Color="#FFFFFFFF"/>
</Text>
<!-- Icon for Line 1 not currently used -->
<!-- Line 2 -->
<Text ID="ArtistName" Left="95" Top="39" Width="209" Height="19" FontFamily="Tahoma" FontSize="9" FontStyle="Regular" Wrap="True" Trimming="EllipsisCharacter">
<TextStage TextOffsetType="TextOffsetDropBottomRight" Color="#00000000" TextOffset="1" BlurFactor="3" Alpha="1.0"/>
<TextStage TextOffsetType="TextOffsetNone" Color="#FFFFFFFF"/>
</Text>
</Layer>
</Layer>
<Layer ID="HTCMUSICCondensed" Visible="False" Width="320" Height="34">
<Layer ID="Page">
<!-- Title or Condensed Line 1 -->
<Text ID="PluginLabel" Left="10" Top="4" Width="300" Height="34" FontFamily="Tahoma" FontSize="18" FontStyle="Regular" Wrap="False" VerticalAlignment="Top" Trimming="EllipsisCharacter" Text"Music">
<TextStage TextOffsetType="TextOffsetDropBottomRight" Color="#00000000" TextOffset="1" BlurFactor="3" Alpha="1.0"/>
<TextStage TextOffsetType="TextOffsetNone" Color="#FFFFFFFF"/>
</Text>
</Layer>
</Layer>

And copy the files inside the zip in windows folder.

This is only a temporal solution until someone adapt the plugin to other resolutions. Sorry I only have a QVGA.